	$(".top-nav a").mouseover(function(){
		$(this).css("color","#FF734c");
	}).mouseout(function(){
		$(this).css("color","#71797F");
	});
	$(".menu-dropdown").mouseover(function(){
		$(this).css("background-color","white").children("div").show();
		$(this).children("a").css("color","#FF734c");
	}).mouseout(function(){
		$(this).css("background-color","#F3F5F7").children("div").hide();
		$(this).children("a").css("color","#71797F");
	});
	$(".kehuFuWu").mouseover(function(){
		$(this).css("background-color","white");
		$(this).children("span").css({"transform":"rotate(180deg)","transition-duration":"0.5s"});
		$(this).children("a").css("color","#FF734c");
		$(this).children("div").show();
	}).mouseout(function(){
		$(this).css("background-color","#F3F5F7");
		$(this).children("span").css("transform","rotate(0deg)");
		$(this).children("a").css("color","#71797F");
		$(this).children("div").hide();
	});
